Loose-leaf binder.



w. P. PITT. LOOSE LEAF BINDER. APPLICATION FILED MAY 12, 1913.

Patented Apr. 7, 1914.

VEN TOR. v 6

W1TNESSES.- N

V a BIZ/WWW 67 @ATTORNLjJ Z TINT STAT PATT It WILLIAM F. PITT, OFINDEPENDENCE, MISSOURI, ASSIGNOR TO IRVING-PITT MANU- FACTURING COMPANY,OF KANSAS CITY, MISSOURI, A CORPORATION OF MISSOURI.

LOOSE-LEAF BINDER.

Application filed May 12, 1913.

To all whom it may concern Be it known that I, WILLIAM P. Prr'r, acitizen of the United States, residing at Independence, in the county ofJackson and State of Missouri, have invented a certain new and usefulImprovement in Loose-Leaf Binders, of which the following is aspecification.

My invention relates to improvements 1n loose leaf binders.

One of the objects of my invention is to provide a simple, cheap,durable and effective mechanism for clamping the follower of a looseleaf binder to the posts thereof.

The novel features of my invention are hereinafter fully described andclaimed.

In the accompanying drawings which illustrate the preferred embodimentof my invention Figure 1 is a horizontal, longitudinal, sectional view,a portion of the upper cover being broken away. Fig. 2 is a view showingthe base and posts in side elevation, the follower and parts connectedtherewith being shown in vertical section, the section being taken onthe line ab of Fig. 1. Fig. 3 is a cross section on the line cdl of Fig.1, the view being enlarged. Fig. 4 is a cross section on the line e-f ofFig. 5. Fig. 5 is a fragmental, sectional view, enlarged, on the lineg-h of Fig. 3.

Similar characters of reference designate similar parts in the difierentviews.

1 designates the base member, to which are secured upwardly extendingparallel posts 2.

3 is a tubular follower, provided with end caps 4 and 5, and having twoholes 6, adapt ed to receive the posts 2. Longitudinally slidable in thefollower 3, is a clamping member comprising preferably a horizontal flatplate 7, having at one end a downwardly turned portion 8, for supportingthat end of the plate in a medial position in the follower 3. The otherend of the clamping member 7 is provided with a slot 9, which is adaptedto receive therethrough the adjacent post 2. The member 7 is providedwith a hole 10, for receiving therethrough the other post 2. The outerend of the slot 9 is contracted, that portion of the member 7 beingprovided with inwardly extending portions 11, which are fitted in atransverse slot 12, Fig. 5, provided in the outer side of a nut 13,which is fitted in the wider portion of the slot 9, and has rotatablyfitted in Specification of Letters Patent.

Patented Apr. "2, 1914.

Serial No. 766,997.

it a horizontal adjusting screw 14, which at its outer end is squared toreceive in operative engagement" therewith the shank of a key or wrench,not shown, which is adapted to be inserted through a hole 15, which isprovided in the cap 4.

The inner end of the screw 14, is provided with a head 16, which at oneend rotatably bears against a clamping member 17, which is adapted toclampingly engage the adjacent post 2. The other end of the head 16 isembraced by a vertical stop comprising an inverted U-shaped plate 18,the upper end of which is mounted in a slot 19, provided in the upperside of the follower 3. The arms of the inverted U-shaped stop 18embrace opposite sides of the screw 14, and are in turn embraced ontheir outer sides by two backwardly and inwardly turned arms 20, withwhich the clamping member 17 is provided.

The clamping member 17 is fitted in the slot 9 of the member 7, so as tobe incapable of rotation therein. The arms of the stop 18 preferablyextend to a point below the arms 20 of the clamping member 17 and areprovided at their outer edges, as shown in Fig. 3, with laterallyextending projections or shoulders 21, which bear against the loweredges of the arms 20, thereby holding the stop 18 from becoming detachedfrom the clamping member 17. The slot 19, in the top of the follower 3,is wide enough to permit a small movement of the stop 18, lengthwise ofthe follower 3. p

In assembling the mechanism, the cap 4 is removed and the clamping plate7 having -mounted thereon the nut 13, screw 14, and

clamping member 17, is inserted into the follower 3. The stop 18, isthen passed through the slot 19, with the arms of said stop insertedbetween the head 16 and the arms 20. The stop 18 is then driven homelower may now be moved to any desired position and held in such positionby applying the wrench or key to the squared outer end of the screw letand turning said screw in a direction such that the member 7 will beforced to the clamping position, in which position the clamping member17 will bear tightly against the adjacent post 2, and that portion ofthe clamping member 7 which forms the outer edge of the hole 10 willbear tightly against the other post 2. By having the member 17non-rotatable, the post against which it bears will not be mutilatedwhen the screw 1 1 is turned so as to effect a clamping engagement.

I do not limit my invention to the structure shown and described, asmodifications thereof, within the scope of the appended claims, may bemade without departing from the spirit of my invention.

Having thus described my invention, what I claim and desire to secure byLetters Patent is 1. In a loose leaf binder, a tubular follower having ahole therethrough adapted to receive a post, a clamping memberlongitudinally movable in said follower and provided with a slot forreceiving said post, a nut carried by said clamping member, an adjustingscrew fitted in said nut, a second clamping member movablelongitudinally in said slot by said adjusting screw, and a stop engagingsaid second clamping member and said tubular follower for limiting themovement of said second clamping member.

2. In a loose leaf binder, a tubular follower having a hole therethroughfor receiving a post, a clamping member longitudinally movable in saidfollower and provided with a slot for receiving said post, a nut carriedby said clamping member, a second clamp ing member, a stop secured tosaid second clamping member and engaging said follower, and an adjustingscrew fitted in said nut and having a head rotatably mounted between thesecond clamping member and said stop.

3. In a loose leaf binder, a follower having a hole there-through forreceiving a post, a clamping member longitudinally movable with respectto the follower'and having a slot adapted to receive said post, a nutcarried by said clamping member, a second clamping member, an adjustingscrew fitted in" said nut and adapted to bear against saidsecondclamping member, and a stop engaging one of said clamping members andsaid follower for limiting the movement of the clamping member which isengaged by thestop.

4:. In'a loose leaf binder, a follower having. a hole therethrough forreceiving a post,

a longitudinally movable clamping member carried by the follower andhaving-a. slot for receiving therethrough said post, a nut carried bysaid clamping member, an adjusting screw fitted in said nut, a secondclamping member rotatably engaging said adjusting screw, and a stopengaging said second clamping member and said follower for limiting themovement of said second clamping member.

5. In a loose leaf binder, a tubular follower having a hole therethroughfor receiving a post and provided with an opening, a clamping member insaid follower and provided with a slot for receiving therethrough saidpost, a nut carried by said clamping member, a second clamping member,an ad just-ing screw fitted in said nut and rotatably engaging saidsecond clamping member, and a stop mounted in said opening in thefollower and engaging one of said olampin members for limiting themovement thereof. 6. In a loose leaf binder, a follower hav-- a clampingmember having a slot for receivlng said post, a nut carried by saidclamping member, a second clamping member, a stop carried by said secondclamping member and adapted to engage the follower, and an adjustingscrew fitted in said nut and having a head rotatably mounted betweensaid stop and said second clamping member and engaging at opposite endssaid stop and said second clamping member. a

7. In a loose leaf binder, a follower having a hole therethrough forreceiving a post, a clamping member having a slot for receiving saidpost, a nut carried by said clamping member, a second clamping memberhaving cooperating arms inwardly turned, a stop embraced by said armsand adapted to engage the follower, and an adjusting screw fitted insaid nut and having a head'embraced by and rotatably mounted between thestop and second clamping member.

8. In a loose leaf binder, a tubular follower having a hole therethroughfor receivv ing a post, a clamping member longitudinally movable in saidfollower and having a slot for receiving said post, a nut carried bysaid clamping member, a second clamp ing member, a stop adapted toengage said follower and embraced by said second clamping member, and anadjusting screw fitted in said nut and having a head mounted rotatablybetween and embraced by said stop and said second clamping member.

9. In a loose leaf binder, a follower having a hole therethrough forreceiving a post, a clamping member having a slot for receiving saidpost, a nut carried by said clamping member, an adjusting screw fittedin said nut and having a head, a second clampmg a hole therethrough forreceiving a post,

ing member having inwardly turned coopsaid follower and disposed betweenand'embraced by said arms, said head being em,- I

braced at opposite ends by said stop and said second clamping member androtatable therebetween.

10. In a loose leaf binder, a follower having a hole therethrough forreceiving a post, a clamping member having at one end a slot forreceiving said post, the outer end of said slot being contracted, a nutfitted in the slot and provided at its outer side with a transverse slothaving mounted therein inwardly extending portions of the clampingmember, an adjusting screw fitted in said nut, and a second clampingmember rotatably engaged by said adjusting screw.

11. In a loose leaf binder, a follower having a hole therethrough forreceiving a post, a clamping member, a nut carried by the clampingmember, an adjusting screw fitted in said nut, a second clamping memberrotatably enga ed by said adjusting screw, and a stop a apted to engagesaid follower and carried by one of said clamping members.

12. In a loose leaf binder, a follower having a hole therethrough forreceiving a post and provided with an opening, a clamping member, a nutcarried by said clamping member, an adjusting screw fitted in said nutand provided with a head, a second clamping member against which oneside of said head is rotatable, and a stop extending into said openingand engaging the second clamping member at the opposite side of saidhead.

13. In a loose leaf binder, a follower having a hole therethrough forreceiving a post, a clamping member, a nut carried by the clampingmember, a non-rotatable clam-ping member, an adjusting screw fitted insaid nut and rotatably engaging the non-rotatable clamping member, andmeans adapted to engage said follower for limiting the movementlengthwise thereof of one of said clamping members.

14:. In a loose leaf binder, a follow-er having two holes therethroughfor receiving respectively two posts, a clamping member adapted toengage one side of one of said posts, a second clamping member adaptedto engage the opposite side of the other post, a nut carried by one ofsaid clamping members, a screw fitted in said nut and engaging the otherclamping member, and a stop carried by one of said clamping members andadapted to engage said follower.

In testimony whereof I have signed my name to this specification inpresence of two subscribing witnesses.

WILLIAM P. PITT.

Witnesses WARREN D. I-IoUsE, E. L. THOMPSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

